CAMPAIGN: FUEL SENDER SEAL DISPLACEMENT, INSPECT/REPAIR
Subject: PRODUCT SAFETY CAMPAIGN 9lCl7 FUEL TANK SENDER SEAL DISPLACEMENT
Model and Year: 1991 S/T 4-DOOR BLAZER (MORAINE ASSEMBLY ONLY)
To: All Chevrolet Dealers
The National Traffic and Motor Vehicle Safety Act, as amended, provides that each vehicle which is subject to a recall campaign of this type must be adequately repaired within a reasonable time after the owner has tendered it for repair. A failure to repair within sixty (60) days after tender of a vehicle is prima facie evidence of failure to repair within a reasonable time.
If the condition is not adequately repaired within a reasonable time, the owner may be entitled to an identical or reasonably equivalent vehicle at no charge or to a refund of the purchase price less a reasonable allowance for depreciation.
To avoid having to provide these burdensome solutions, every effort must be made to promptly schedule an appointment with each owner and to repair their vehicle as soon as possible. As you will see in reading the attached copy of the letter that is being sent to owners, the owners are being instructed to contact the Chevrolet Customer Assistance Center if their dealer does not remedy the condition within five (5) days of the mutually agreed upon service date. If the condition is not remedied within a reasonable time, they are instructed on how to contact the National Highway Traffic Safety Administration.
DEFECT INVOLVED
General Motors has determined that certain 1991 Chevrolet S/T Blazer Sport Utility vehicles fail to conform to the requirements of Federal Motor Vehicle Safety Standard (FMVSS) 301, "Fuel System Integrity". Some of these vehicles may have been shipped with the fuel tank sender seal out of position. In the event of a rollover accident, an out of position seal could allow fuel spillage in excess of the amount prescribed by FMVSS 301. If an ignition source was present, fuel leakage resulting from this mispositioned seal could result in a fire.
To correct this condition, and to comply with FMVSS 301, dealers are to inspect the involved vehicles and determine if the fuel tank sender seal has become displaced and replace those seals that are displaced.
VEHICLES INVOLVED
Involved are certain 1991 Chevrolet S/T Blazer Sport Utility vehicles built at Moraine Assembly built within the following VIN breakpoints:
PLANT YEAR MODEL PLANT CODE FROM THROUGH ---- ----- ------- --- -------- -------- 1991 S/T Moraine "2" M2100004 M2266356 Blazer
Involved vehicles have been identified by Vehicle Identification Number Computer Listings. Computer listings contain the complete Vehicle Identif- ication Number, owner name and address data, and are furnished to involved dealers with the campaign bulletin. Owner name and address data furnished will enable dealers to follow-up with owners involved in this campaign.
These listings may contain owner names and addresses obtained from State Motor Vehicle Registration Records. The use of such motor vehicle registration data for any other purpose is a violation of law in several states. Accordingly, you are urged to limit the use of this listing to the follow-up necessary to complete this campaign. Any dealer not receiving a computer listing with the campaign bulletin has no involved vehicles currently assigned.
OWNER NOTIFICATION
Owners will be notified of this campaign on their vehicles by Chevrolet Motor Division (see copy of owner letter included with this bulletin).
DEALER CAMPAIGN RESPONSIBILITY
Dealers are to service all vehicles subject to this campaign at no charge to owners, regardless of mileage, age of vehicle, or ownership, from this time forward.
Whenever a vehicle subject to this campaign is taken into your new or used vehicle inventory, or it is in your dealership for service in the future, you should take the steps necessary to be sure the campaign correction has been made before reselling or releasing the vehicle.
Owners of vehicles recently sold from your new vehicle inventory are to be contacted by the dealer, and arrangements made to make the required correction according to instructions contained in this bulletin.
This bulletin is notice to you that the new motor vehicles involved in this campaign may not comply with the standard identified above. Under section 108 of the National Traffic and Motor Vehicle Safety Act, it is illegal for a dealer to sell a new motor vehicle which the dealer knows does not comply with an applicable Federal Motor Vehicle Safety Standard. As a consequence, if you sell any of these vehicles without first performing the campaign correction, your dealership may be subject to a civil penalty up to $1,000 for each such sale.
PARTS INFORMATION
Parts required to complete this campaign are to be obtained from General Motors Service Parts Operations (GMSPO). To ensure these parts will be obtained as soon as possible, they should be ordered from GMSPO on a "C.I.O." order with no special instruction code, but on an advise code (2).
Quantity/ Part Number Description Vehicle ----------- ----------------- ------------- 03893116 Seal Ring (Package of 10) 1 Seal Per Truck (As Required)
NOTICE: IT IS EXPECTED THAT LESS THAN 1% OF THE VEHICLES INVOLVED IN THIS CAMPAIGN WILL EXPERIENCE THE CONDITION DESCRIBED.
SERVICE PROCEDURE
Tool Required:
i 24460-01 Radiator Pressure Test Pump
A. INSPECTION
NOTICE: GASOLINE OR GASOLINE VAPORS ARE HIGHLY FLAMMABLE. IF AN IGNITION SOURCE IS PRESENT A FIRE COULD OCCUR. HAVE A DRY CHEMICAL (CLASS B) FIRE EXTINGUISHER NEARBY.
1. Disconnect negative battery cable. 2. Remove fuel tank filler cap to relieve any fuel vapor pressure. 3. Reinstall fuel tank filler cap and tighten until an audible "click" is heard. 4. Remove fuel vapor canister purge line from canister fitting marked "tank". 5. Disconnect radiator pressure test cap from Radiator Pressure Test Pump (Kent-Moore tool J 24460-01 or equivalent).
6. Insert threaded end of radiator Pressure Tester Hose into fuel tank vapor purge line.
7. Pressurize fuel tank and emissions system with 30 strokes of Radiator Pressure Tester Hand Pump. Pressure gauge on pump will indicate a low amount of pressure. Note location of needle in relationship to gauge and monitor for one minute. If emissions system, fuel tank filler cap and sender seal are correctly installed, there should be no loss of pressure.
NOTICE: DO NOT, UNDER ANY CIRCUMSTANCE, USE SHOP AIR HOSE IN PLACE OF RADIATOR PRESSURE TESTER HAND PUMP. OVER PRESSURIZING OF FUEL TANK OR EMISSIONS SYSTEM COULD LEAD TO SYSTEM LEAKAGE OR DAMAGE. IF AN IGNITION SOURCE IS PRESENT A FIRE COULD OCCUR.
8. After one (1) minute, slowly remove fuel tank cap while listening for pressure being released past the fuel tank cap threads.
- If release of pressure is evident, the seal ring has not been displaced. Go on to Step 9, stop at Step 12.
- If no pressure is detected when fuel tank filler cap is removed, it will be necessary to remove fuel tank to replace fuel tank sender seal ring. Proceed to Step B - Replacement Of Fuel Sender Seal Ring.
9. Disconnect Radiator Pressure Tester Hand Pump from fuel tank vapor purge line.
10. Reconnect fuel tank vapor purge line to fuel vapor canister.
11. Reconnect negative battery cable.
12. Install Campaign Identification Label.
B. REPLACEMENT OF FUEL SENDER SEAL RING
NOTICE: GASOLINE OR GASOLINE VAPORS ARE HIGHLY FLAMMABLE. IF AN IGNITION SOURCE IS PRESENT A FIRE COULD OCCUR. HAVE A DRY CHEMICAL (CLASS B) FIRE EXTINGUISHER NEARBY.
1. Drain fuel from tank.
NOTICE: NEVER DRAIN OR STORE GASOLINE IN AN OPEN CONTAINER, DUE TO THE POSSIBILITY OF FIRE OR EXPLOSION.
2. Raise vehicle on hoist.
3. Remove fuel tank plastic shield.
4. Support fuel tank and remove brackets (Figure 1, next page).
5. Disconnect fuel tank filler neck.
6. Disconnect fuel lines at filler neck.
7. Lower tank and disconnect fuel lines and electrical connections at sender.
8. Remove the fuel sender seal and the seal ring using tool J 36608 or J24187 (Figure 2, previous page).
9. Replace seal and reinstall sender using tool J 36608 or J 24187.
10. Raise tank and reconnect fuel lines and electrical connections at sender.
11. Reconnect fuel lines at filler neck.
12. Reconnect fuel tank filler neck.
13. Reinstall fuel tank brackets and tighten bracket bolts to 45 Nm (33 lb. ft.).
14. Install fuel tank plastic shield.
15. Pour fuel removed in Step 1 back into tank.
16. Reinstall fuel tank filler cap.
17. Remove tester from purge line.
18. Reinstall fuel vapor purge line to vapor canister.
19. Reinstall negative battery cable.
20. Install Campaign Identification Label.
CAMPAIGN IDENTIFICATION LABEL
Each vehicle corrected in accordance with the instructions outlined in this Product Campaign Bulletin will require a "Campaign Identification Label." Each label provides a space to include the five (5) digit dealer code of the dealer performing the campaign service. This information may be inserted with a typewriter or a ball point pen.
Each "Campaign Identification Label" is to be located on the radiator core support in an area which will be visible when the vehicle is brought in for periodic servicing by the owner.
Apply "Campaign Identification Label" only on a clean, dry surface.
CLAIM INFORMATION
Submit a Product Campaign Claim with the information indicated below:
* FAILED PARTS CC-FC LABOR LAB OTH REPAIR PERFORMED PC PART NO. ALLOW OP HRS HRS --------------- -- -------- ----- ------- ----- ---- ---- Inspect - Seal - - - - - SK-00 V6780 0.2 0.1 Seated Properly
Inspect/New Seal 1 03893116 ** SK-00 v6781 1.1 0.1 Installed
* Campaign Administrative Allowance.
** The "Parts Allowance" should be the sum total of the current GMSPO Dealer Net price plus 30% of all parts required for the repair.
Dealers will automatically receive the correct labor and material allowance based on the labor operation performed.
Refer to the Chevrolet Claims Processing Manual for details on Product Campaign Claim Submission.
Dear Chevrolet S-10 Blazer Owner:
This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act.
REASON FOR THIS RECALL
General Motors has determined that certain 1991 Chevrolet S/T Blazer Sport Utility vehicles fail to conform to the requirements of Federal Motor Vehicle Safety Standard (FMVSS) 301, "Fuel System Integrity". Some of these vehicles may have been shipped with the fuel tank sender seal out of position. In the event of a rollover accident, an out of position. seal could allow fuel spillage in excess of the amount prescribed by FMVSS 301. If an ignition source was present, fuel leakage resulting from this mispositioned seal could result in a fire.
WHAT WE WILL DO
To correct this condition, your dealer will inspect your truck to determine if the fuel tank sender seal has become displaced. if the seal is displaced, a new seal will be installed.
This service will be performed for you at no charge.
WHAT YOU SHOULD DO
After contacting your dealer and the Customer Assistance Center, if you are still not satisfied that we have done our best to remedy this condition without charge and within a reasonable time, you may wish to write the Administrator, National Highway Traffic Safety Administration, 400 Seventh street, S.W., Washington, D.C. 20590 or call 1-800-424-9393 (Washington D.C. residents use 366-0123).
The enclosed owner reply card identifies your vehicle. Presentation of this card to your dealer will assist in making the necessary inspection/ correction in the shortest possible time. If you have sold or traded your vehicle, please let us know by completing the postage paid reply card and returning it to us.
We are sorry to cause you this inconvenience; however, we have taken this action in the interest of your safety and continued satisfaction with our products.
General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.
